When the bearing after taken from the heat in the tank or heater, immediately witha clean cloth (not cotton) wipe the traces of oil on the surface of the bearing and the attachment, and then placed in front of the mating surfaces, in an operation to push the bearing to the location against the shaft shoulder. During the cooling process should always be pushed in tight, by assembling of casing or small hammer tap bearing to make it close. Installation should be slightly and rotate the bearing to prevent installation tilt or jam. Plates bearing outer ring and shell holes for tight fit can also be load bearing after heating of the shell. Particularly light metal manufactured housing in the case of a tight fit, may be pressed into the bearing outer ring and damage the mating surfaces, the bearings should be heated.